비즈링, also known as My Biz Ring, is an Android app developed by MOBIEM. It falls under the category of Business & Productivity and is available for free. This app is designed for freelancers, one-person creative companies, and small business people who want personalized publicity.

With 비즈링, users can create their own unique ring back tones using their own recorded voice files. They can record their PR, company profile, or personalized greeting and automatically mix it with their favorite background music. This can be done easily using just a mobile phone and the app.

Users can also set the ring tones for their friends, family, and colleagues by using the recorded voice files. The app offers various sharing options such as KakaoTalk, text messages, and Facebook.

비즈링 provides a simple and convenient way for users to record their own unique voice and apply for the Biz Ring service. The changed ring tone can be checked within 2-3 days after the application is completed.

It is important to note that there is no charge for recording only, without applying for the Biz Ring service. However, the Biz Ring service itself is a monthly fixed value added service that incurs a charge of 3,500 won per month.

Overall, 비즈링 offers a user-friendly platform for creating personalized ring back tones, making it a valuable tool for freelancers and small business owners.